ScienceInsights

Expired Imodium is generally safe but may work less well. Learn when it's okay to use, how storage affects potency, and when to replace your supply.

Vaginal tenderness can stem from infections, friction, hormonal changes, or skin conditions. Here's what might be causing it and when to seek care.

High cholesterol quietly damages arteries over time. Learn what your numbers mean, how long-term exposure raises your heart and stroke risk, and why standard tests don't always show the full picture.

Learn how to check your heart rate at the wrist or neck, count beats accurately, and understand what your numbers mean for your health.

Armour Thyroid contains starch, but is it gluten-free? Here's what thyroid patients with celiac disease or gluten sensitivity should know.

Vaccine costs vary widely depending on your insurance, age, and where you go. Here's what to expect and how to find free or low-cost options.

Pink discharge usually comes from a small amount of blood mixing with normal discharge. Here's what commonly causes it and when to see a doctor.

Precum can carry sperm and STIs, but the risks vary. Here's what the science says about pregnancy and infection chances from pre-ejaculate.

Learn what healthy pressure looks like for your blood, eyes, and skull, including how targets shift with age and what the numbers actually mean.

Pancreatic cancer is serious, but treatment can lead to long-term remission for some. Here's what surgery, chemo, and other options realistically offer.